Chemical-solution tank for use in cleaning metal parts



Jul 14, 1925. 7 1,545,979

L. ROSENBERG CHEMICAL SOLUTION TANK FOR USE IN CLEANING METAL PAliTSFiled Dec. 14 1923 8 vweu 60%.

Patented July 14 1925.

UNITED STATES" PATENT OFFICE.

LOUIS ROSENBERG, or MILWAUKEE, wIscoNsm, assrenon 'roLavo COMPANY 01'AMERICA, a coaroaa'rron or wlsconsm.

OEEIIGAL-SOLUTION TANK FOR USE fN' CLEANING IABTS.

Application filed December 14, 1923. Serial No. 680,788.

To all whom it may concern:

Be it known that I, LOUIS Rosnnsnnc, a-

citizen of the United States, and a resident of Milwaukee, inthe countyof Milwaukee and State of Wisconsin, have invented a new and usefulChemical-Solution Tank for Use in CleaningMetal Parts, of which thefollowing is a specification.

The object of my invention isto provide vdischargcs into drum trap 23.Trap 23 is a novel and eflicient apparatus for use in cleaning metalparts; and to provide the novel combination and arrangements of partshereinafter described. I attain these and other objects of my inventionby the mechanism illustrated in the accompanying drawings, in which-Figure 1 is side elevation of my invention, partly in section; and

Fig. 2 is a transverse section on line 2-2 of Fig. 1. I

Like numerals designate like parts in each of the several views.

Referring to the accompanying drawin s, I provide a tank 1 made .of gageboifia'r plate, over which is an insulation linin of asbestos 2, overwhich is a galvanized covering 3. 'I also provide a suitable asbestoslined cover 4, hinged at 5 to the outer shell 3 of the tank, the coverbeing provided with suitable hand grips 6. I provide a hot solutionsupply pipe 7 extending from heater 9 to tank 1, as shown in Fi 1. Pipe7 is provided with a suitable iose connection 8, used in washing out thetank. 7 Heater 9 is provided wlth a stack 10- equipped with automaticback draft prc ventative connected with flue. Heater 9 is also providedwith a suitable door 11, and with an automatic heat regulator 12. Iprovide a coldsolution intake 13 to the eater, this intakeibeingprovided witlf a thermometer 14, I also provide a muck washout pipe 15:"for the heater. I also provide a suitable valve 16 in pipe 15. I Iprovide a muck draw ofi pipe 17 opening out of the bottom of tank 1 andinto pipe 15, said pipe'17 havinga-suitable valve 18. As shown in Fig. 1of the drawings, I provide a suitable oil dam or grease trap 19 near theupper Eprtion of tank 1 at one end of same, w and reclaims alloilrecovered from the metal parts placed,in the solutiontank 1,.

the normal level or surface of the contents 1 of the tank beingdesignatedfi in, F1 1.

. and thence ch automatically skims- I provide a conduit 27 opening outof the grease trap 19. I also provide a drain 20 provided with asuitable cover 23'. Cold solution intake 13- and drain 20 are bothspaced substantially above the bottom of tank 1 so that a muck trap 25is provided in the bottom of tank 1, as shown in Fi 1 and 2, below thecirculation levelof t e solution or fluid in the tank used in cleaningthe metal parts.

In operation, the tank is filled with water supplied through pipe '28,and the desired chemicals and the metal parts to be cleaned are placedin the tank, the coven 4 of which is removable. The chemical cleaninsolution 29 is circulated in the manner in icated by the arrows 26 inFig. 1, the solution passing through ipes'13- and 15 to the heater 9 ackthrough supply ipe 7 to the tank 1. Oil whic is remove from the metalarts by the solution floats to the to and is caught in the ease tra 19an reclaimed, .this (oil having a hig fuel value. The drain 20, theentrance to which is screened to prevent clogging, being positioned asuitable distance above the bottom of the tank permits of the collectionof muck in the bottom of the tank. In

draining ofi the solution 29, it flows through pipe 20 to the drum trap23 and thence to the sewer. The bottom of the tankbeing provided withthe drain 17 affords means for drawing of the muck, to

the muck washout pipe 15 and thence to the po' t of dischar to thesewer. ,The

tempera, ure of the so ution is automatically I controlled by theautomatic heat regulator 12 as indicated in Fig. 1.

1. Ina chemical solution tank for use in cleaning metal arts, thecombination of an elongated tank having a removable cover, a heaterarran d at one. end of the tank, a valve-contro ed conduit extendingdirectl from the heater to the upper portion 0 the tank, a conduitconnectin the lower po ion of the heater with the ower p -t n 0 611.0tank'and at the am end'of 7 the tank as the first mentioned conduit tocause a continuous circulation of heated solution through the tank, avalve-controlled discharge conduit in communication with the lastmentioned conduit for thefiischarge of muck from the heater, and avalve-con trolled conduit opening out of the bottom of the tank andcommunicating with the last mentioned muck-discharge, conduit fordraining the tank when desired.

2. In combination withthe apparatus described in claim 1, a greasedischarge conduit opening out of the upper portion of the tank, and achamber forming a grease trap positioned to receive grease from thecontents of the tankand to collect and disgharge same through saiddischarge conuit. y

3. In combination with the apparatus dea valve-controlled discharge pipeopening out of the lower portion of the tank and spaced from the bottomthereof and in com- 1 munication with the grease discharge con duitabove mentioned, as and forithe purposes described.

a 4. In combination with the apparatus vdescribed in claim 1, anindependent valvecontrolled conduit opening into the upper portion ofthe tank at a level below that of the grease trap, for the introductionof water into the tank when desired.

LOUIS ROSENBERG.

